M79 Barrels

[clarence.birdseye]

Does anyone know where I could find blueprints for an M79 barrel? I need the basic dimensions and specification of materials.

Thanks.

 

[USAF_Vet]

40mm smooth bore, 14" length.
Not exactly blue prints but...




All found with a quick Google search.

There's even one for sale on gun broker.
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=523356562

 

[rcmodel]

The M-79 grenade launcher was not a smooth-bore.

It was very much rifled.
6 groove, 1/48 right hand twist to be exact.

It had to be both for accuracy, and to arm the spin arming HE shell it fired.

Rotation of the round in the bore caused a flywheel in the shell to unwind and release and arm it down range out of it's blast radius.

rc

 

[USAF_Vet]

Learned something new. Thanks RC.

I've seriously considered getting one of the 37mm lookalikes.

 

[clarence.birdseye]

Hi and thanks.

My company makes an m203 clone and we have some interest from LE in a 40mm top break. I was just doing a little research.

 

[joem1945]

I carried a M79 for a bit. It did have a rifled barrel and was accurate out to about 300 yds if I remember correctly. Of course accuracy depended on the shooter.